| Barsbuttel to Oria | 967.59 mi (1,557.19 km) |
| Barsbuttel to Oristano | 946.76 mi (1,523.66 km) |
| Barsbuttel to Orta Nova | 883.55 mi (1,421.93 km) |
| Barsbuttel to Orte | 774.10 mi (1,245.80 km) |
| Barsbuttel to Ortona | 799.00 mi (1,285.87 km) |
| Barsbuttel to Orvieto | 754.81 mi (1,214.75 km) |
| Barsbuttel to Orzinuovi | 564.36 mi (908.25 km) |
| Barsbuttel to Osimo | 712.83 mi (1,147.19 km) |
| Barsbuttel to Ospitaletto | 553.55 mi (890.85 km) |
| Barsbuttel to Ostuni | 951.48 mi (1,531.26 km) |
| Barsbuttel to Ottaviano | 901.21 mi (1,450.36 km) |
| Barsbuttel to Ovada | 620.61 mi (998.78 km) |
| Barsbuttel to Ozieri | 898.59 mi (1,446.14 km) |
| Barsbuttel to Paceco | 1,082.66 mi (1,742.37 km) |
| Barsbuttel to Pachino | 1,188.07 mi (1,912.01 km) |
